Beijing. A remote-controlled underwater robot that can dive up to 6,000 meters deep has passed sea trials and been delivered to its user, according to the Shenyang Institute of Automation (SIA) of the Academy of Sciences. China Sciences, developer of the robot. The Wenhai-1, developed for the Geological Survey of China's Qingdao Institute of Marine Geology, is the country's first deep-sea unmanned autonomous probe with functions such as long-range autonomous cruise detection and accurate sampling of points by remote control, said the SIA on its website. During sea trials and application, the Wenhai-1 conducted 17 immersion missions, during which it…